### APPENDIX O. GLOSSARY OF VARIABLES AND THEIR VALUES FROM EIA'S RECS 2001 TABLE OF CONTENTS 0.1 RESIDENTIAL ENERGY CONSUMPTION SURVEY (RECS) 2001 VARIABLES USED IN LCC ANALYSIS ................................. 0-1 0.2 RECS 2001 DATABASE .............................................. 0-2

LIST OF TABLES Table 0.1.1 RECS 2001 Variables Used in Life-Cycle Cost Analysis ................ 0-1 Table 0.2.1 Definitions of RECS 2001 Variables Used in Life-Cycle Cost Analysis .... 0-2 

### APPENDIX O. GLOSSARY OF VARIABLES AND THEIRVALVES FROMEIA'S RECS 2001 TABLE OF CONTENTS 0.1 RESIDENTIAL ENERGY CONSUMPTION SURVEY (RECS) 2001 VARIABLES USED IN LCC ANALYSIS

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0-1 0.2 RECS 2001 DATABASE

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LIST OFTABLES Table 0.1.1 RECS 2001 Variables Used inLife-Cycle Cost Analysis

. . . . . . . . . . . . . . .. 0-1 Table 0.2.1 Definitions ofRECS 2001 Variables Used in Life-Cycle Cost Analysis

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### APPENDIX 0. GLOSSARY OF VARIABLES AND THEIR VALUES FROM THE ENERGY INFORMATION AGENCY'S RECS 2001

0.1 RESIDENTIAL ENERGY CONSUMPTION SURVEY (RECS) 2001 VARIABLES USED IN LCC ANALYSIS Using Microsoft ACCESS, the Department created a database containing a subset of the records and variables from DOE's Energy Information Administration (EIA)'s RECS 2001.' The Department used this RECS subset in the life-cycle cost (LCC) analysis of the Residential Furnace and Boiler Rulemaking. This appendix explains the variable name abbreviations and provides definitions of the variable values. For the entire RECS 2001 dataset, refer to http://www. eia. doe. gov/emeu/recs/recs2001 /publicuse2001.html. 

### The Department divided the RECS sample by product classes, using different classification algorithms based on fuel type, home type, (the presence of) central air conditioning, etc. (Table 0.1.1). The variables can be categorized into six classifications: location, house characteristics, equipments characteristics, householder characteristics, energy use, and average energy price. Table 0.1.1 RECS 2001 Variables Used in Life-Cycle Cost Analysis Location House

Characteristics Equipment

Characteristics Householder

Characteristics Energy Use Average Energy Price Census Housing Type Heating Number of 65+ Annual Heating Annual Total Region Equipment Type in Household Natural Gas Use Energy Use by Fuel Type Census Year Made Do not use Low Income Annual Heating Annual Total Division Heating LPG Use Energy Equipment Expenditures by Fuel Type Large State Total Square Heating Number of Annual Heating (NY, CA, Footage Equipment Age People in Fuel Oil Use TX, FL) Household Heating Total Heated Heating Annual Cooling Degree Day Square Footage Equipment Used Electricity Use 65 to Heat other Apartments Cooling Weighting Heating Fuel Degree Day65 Central Air Presence Central Air Age

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### APPENDIX O. GLOSSARY OF VARIABLES AND THEIRVALUES FROMTHE ENERGY INFORMATION AGENCY'S RECS 2001

0.1 RESIDENTIAL ENERGY CONSUMPTION SURVEY (RECS) 2001 VARIABLES USED IN LCC ANALYSIS Using Microsoft ACCESS, the Department created a database containing a subset ofthe records and variables from DOE's Energy Information Administration (EIA)'s RECS 2001.1 The Departmentusedthis RECS subsetinthe life-cycle cost (LCC) analysis oftheResidential Furnace and Boiler Rulemaking. This appendix explains the variable name abbreviations and provides definitions of the variable values. For the entire RECS 2001 dataset, refer to http://www.eia.doe.gov/emeu/recs/recs2001/publicuse2001.htm!. The Departmentdividedthe RECS samplebyproductclasses, usingdifferentclassification algorithms based on fuel type, home type, (the presence of) central air conditioning, etc. (Table 0.1.1). The variables can be categorized into six classifications: location, house characteristics, equipments characteristics, householder characteristics, energy use, and average energy price. T bi 011 RECS 2001 V . bi U d·**L·~** 

### C I 

### C t 

### A I .

a e 

# .. ana es se III I 

### e- ;yc e os nalYSIS

Location House Equipment Householder EnergyUse Average Characteristics Characteristics Characteristics Energy Price Census Housing Type Heating Number of65+ Annual Heating Annual Total Region EquipmentType in Household Natural Gas Use Energy Use by Fuel Type Census YearMade Do not use Low Income Annual Heating Annual Total Division Heating LPG Use Energy Equipment Expenditures by Fuel Type Large State Total Square Heating Number of Annual Heating (NY, CA, Footage EquipmentAge People in Fuel Oil Use TX,FL) Household Heating Total Heated Heating Annual Cooling Degree Day Square Footage Equipment Used Electricity Use 65 to Heat other Apartments Cooling Weighting Heating Fuel Degree Day65 Central Air Presence Central AirAge

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### 0.2 RECS 2001 DATABASE

The glossary below lists the variable names alphabetically. A brief explanation of the variable name as it appears in the database file follows the name. Table 0.2.1 provides the definitions of the variable's values. Table 0.2.1 Definitions of RECS 2001 Variables Used in Life-Cycle Cost Analysis Variable Definition LocatIo€l ^^ ^ ^'BablC5 REGIONC Census region 1 = Northeast 2 = Midwest 3 = South 4 = West DIVISION Census division 1 = New England 2 = Middle Atlantic 3 = East North Central 4 = West North Central 5 = South Atlantic 6 = East South Central 7 = West South Central 8 = Mountain 9 = Pacific LRGSTATE Large state designation 1 = New York 2 = California 3 = Texas 4 = Florida LRG+DIV* Combined large state (LRGSTATE) and census division (DIVISION) 1 = New England 2 = Middle Atlantic (not including New York) 3 = East North Central 4 = West North Central 5 = South Atlantic (not including Florida) 6 = East South Central 7 = West South Central (not including Texas) 8 = Mountain 9 = Pacific (not including California) 10 = New York 11 = California 13 = Texas 14 = Florida

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### 0.2 RECS 2001 DATABASE The glossary below lists the variable names alphabetically. A briefexplanation ofthe variable name as it appears in the database file follows the name. Table 0.2.1 provides the definitions ofthe variable's values.

REGIONC

DIVISION

LRGSTATE

LRG+DIV* Census region 1 = Northeast 2 = Midwest 3 = South 4 = West Census division 1 = New England 2 = Middle Atlantic 3 = EastNorth Central 4 = WestNorth Central 5 = South Atlantic 6 = East South Central 7 = West South Central 8 = Mountain 9 = Pacific Large state designation 1 = New York 2 = California 3 = Texas 4 = Florida Combined large state (LRGSTATE) and census division (DIVISION) 1 = New England 2 = Middle Atlantic (not including New York) 3 = EastNorth Central 4 = WestNorth Central 5 = South Atlantic (not including Florida) 6 = East South Central 7 = West South Central (not including Texas) 8 = Mountain 9 = Pacific (not including California) 10 = New York 11 = California 13 = Texas 14 = Florida

0-2CDD65 Cooling Degree-Days to base 65, 1-04 TO 12-04 Cooling degree days are the number of degrees the average daily temperature (ADT) is above the base temperature. HDD65 Heating Degree-Days to base 65, 1-04 TO 12-04 Heating degree days are the number of degrees the ADT is below the base temperature. Household Characteristics Variables DOEID DOE 4-digit identification number TYPEHUQ Respondents reported type of home 1 = Mobile Home 2 = Single-Family Detached 3 = Single-Family Attached 4 = Apartment in Building containing 2-4 units 5 = Apartment in Building containing 5 or more units YEARMADE Year home built 1 = Before 1940 2 = 1940-49 3 = 1950-59 4 = 1960-69 5 = 1970-79 6 = 1980 7 = 1981-1989 8 = 1990 9 = 1991-1995 10 =1996-1998 11 = 1999 12 = 2000 13 = 2001 96 = Don't Know TOTSQFT Total square footage TOTHSQFT Total heated square footage NWEIGHT Final weight Equipment Characteristics Variables DNTHEAT Have any heating equipment, Use it or not 1 = Have equipment, but don't use it 2 = Don't have any heating equipment 9 = No Answer/Not Applicable

0-3 CDD65 Cooling Degree-Days to base 65, 1-04 TO 12-04 Cooling degree days are the number ofdegrees the average daily temperature (ADT) is above the base temperature. HDD65 Heating Degree-Days to base 65, 1-04 TO 12-04 Heating degree days are the number ofdegrees the ADT is belowthe base temperature. Household Characteristics Variables DOEID DOE4-digit identificationnumber TYPEHUQ Respondents reported type ofhome 1

### =Mobile Home 2 

### = Single-Family Detached 3 

### = Single-Family Attached 4 

### =Apartment in Building containing 2-4 units 5 

### =Apartment inBuilding containing 5 or more units YEARMADE Year home built 1

### =Before 1940 2 

### = 1940-49 3 

### = 1950-59 4 

### = 1960-69 5 

### = 1970-79 6 

### = 1980 7 

### = 1981-1989 8 

### = 1990 9 

### = 1991-1995 10 

### = 1996-1998 11 

### = 1999 12 

### = 2000 13 

### = 2001 96 

### =Don't Know TOTSQFT Total square footage TOTHSQFT Total heated square footage NWEIGHT Final weight Equipment Characteristics Variables DNTHEAT Have any heating equipment, Use it ornot 1

### =Have equipment, but don't use it 2 

### =Don'thave any heating equipment 9 

### =No AnswerlNot Applicable

0-3EQUIPM Type of heating equipment that provides the heat 2 = Steam/hot water system with radiators 3 = Central warm-air furnace with ducts 4 = Heat pump 5 = Built-in electric units installed in walls 6 = Built-in floor/wall pipeless furnace 7 = Built-in heater burning gas, oil, kerosene 8 = Heating stove burning wood, coal, coke 9 = Fireplace 10 = Portable electric heaters 11 = Portable kerosene heaters 12 = Cooking stove used to heat and cook 14 = Geothermal heat pump 21 = Equipment not listed 99 = No Answer/Not Applicable EQUIPAGE How old is equipment identified in EQUIPM heat system? 1 = Less than 2 years old 2 = 2 to 4 years old 3 = 5 to 9 years old 4 = 10 to 19 years old 5 = 20 years or older 96 = Don't know 99 = No Answer/Not Applicable FUELHEAT Main fuel used for heating home 1 = Natural gas from underground pipes 2 = Bottled gas (LPG or propane) 3 = Fuel oil 4 = Kerosene 5 = Electricity 7 = Wood 8 = Solar 9 = District steam 10 = Coal 99 = No Answer/Not Applicable HEATOTH Main heating system also heat other apartments 1 = Yes 0 = No 6 = Don't know 9 = No Answer/Not Applicable COOLTYPE What kind of air-conditioning equipment do you have? 1 = A central system 2 = Individual units in the window or walls 3 = Both central and individual units 9 = No Answer/Not Applicable

0-4 EQUIPM Type ofheating equipment that provides the heat 2 = Steam/hotwater systemwith radiators 3 = Central warm-air furnace with ducts 4 = Heat pump 5 = Built-in electric units installed in walls 6 = Built-in floor/wall pipeless furnace 7 = Built-inheaterburning gas, oil, kerosene 8 = Heating stove burning wood, coal, coke 9 = Fireplace 10 = Portable electric heaters 11 = Portable kerosene heaters 12 = Cooking stove used to heat and cook 14 = Geothermal heatpump 21 = Equipment not listed 99 = No AnswerlNot Applicable EQUIPAGE How old is equipment identified in EQUIPM heat system? I = Less than 2 years old 2 = 2 to 4 years old 3 = 5 to 9 years old 4 = 10 to 19 years old 5 = 20 years or older 96 = Don'tknow 99 = No AnswerlNot Applicable FUELHEAT Main fuel used for heating home 1 = Natural gas from underground pipes 2 = Bottled gas (LPG or propane) 3 = Fuel oil 4 = Kerosene 5 = Electricity 7 = Wood 8 = Solar 9 = District steam 10 = Coal 99 = No AnswerlNot Applicable HEATOTH Main heating system also heat other apartments I =Yes O=No 6 = Don'tknow 9 = No AnswerlNot Applicable COOLTYPE Whatkind ofair-conditioning equipment do you have? I = A central system 2 = Individual units in the window orwalls 3 = Both central and individual units 9 = No AnswerlNot Applicable

0-4AGECENAC How old is your household's central AC equipment? 1 = Less than 2 years old 2 = 2 to 4 years old 3 = 5 to 9 years old 4 = 10 to 19 years old 5 = 20 years or older 96 = Don't know 99 = No Answer/Not Applicable Householder Characteristics Variables YEARS3 How many are adults 65 or older? 0-15 = Number of adults 65 or older YEARS4 How many are adults 75 or older? 0-15 = Number of adults 75 or older POOR100 Below 100 percent of poverty 1 = Poor 100% 0 = Nonpoor NHSLDMEM How many people normally live in this household? 1-15 = Number that live in household Energy Use Variables BTUNGSPH Natural Gas Space Heat Use (Estimated) BTULPSPH LPG Space Heat Use (Estimated) BTUFOSPH Fuel Oil Space Heat Use (Estimated) BTUELCOL Electric AC Use (Estimated) Average Energy Price Variables DOLLAREL Estimated Cost Of Electricity In Dollars DOLLARNG Estimated Cost Of Natural Gas In Dollars DOLLARLP Estimated Cost Of LPG In Dollars DOLLARFO Estimated Cost Of Fuel Oil In Dollars KWH Kilowatt Hours Of Electricity Used BTUNG Natural Gas Annual Use In Thousands of BTU BTUFO Fuel Oil Annual Use In Thousands of BTU BTULP LPG Annual Use In Thousands of BTU AvgELPrice* Average Electricity Price ($ / kWh) = DOLLAREL / KWH

0-5 AGECENAC How old is your household's central AC equipment? 1

### =Less than 2 years old 2 

### =2 to 4 years old 3

### = 5 to 9 years old 4 

### = 10 to 19 years old 5

### =20 years or older 96 

### = Don'tknow 99 

### =No AnswerlNot Applicable Householder Characteristics Variables YEARS3 How many are adults 65 orolder? 0-15 

### =Number ofadults 65 or older YEARS4 How many are adults 75 or older? 0-15 

### =Number ofadults 75 or older POOR100 Below 100 percent ofpoverty 1

### =Poor 100% 

## o=Nonpoor NHSLDMEM How many people normally live inthis household? 1-15 

### =Numberthat live in household Energy Use Variables BTUNGSPH Natural Gas Space Heat Use (Estimated) BTULPSPH LPG Space Heat Use (Estimated) BTUFOSPH Fuel Oil Space Heat Use (Estimated) BTUELCOL Electric AC Use (Estimated) Average Energy Price Variables DOLLAREL Estimated Cost OfElectricity In Dollars DOLLARNG Estimated Cost OfNatural Gas InDollars DOLLARLP Estimated Cost OfLPG InDollars DOLLARFO Estimated Cost OfFuel Oil In Dollars KWH KilowattHours OfElectricity Used BTUNG Natural Gas Annual Use InThousands ofBTU BTUFO Fuel Oil Annual Use In Thousands ofBTU BTULP LPG Annual Use In Thousands ofBTU AvgELPrice* Average Electricity Price ($ / kWh) 

### =DOLLAREL/ KWH

0-5AvgNGPrice* Average Natural Gas Price ($ / kBtu) = DOLLARNG / BTUNG AvgLGPrice* Average LPG Price ($ / kBtu) = DOLLARLP / BTULP AvgFOPrice* Average Fuel Oil Price ($ / kBtu) = DOLLARFO / BTUFO * Variables created by DOE from combining RECS 2001 variables.



### AvgNGPrice* Average Natural Gas Price ($ / kBtu)
= DOLLARNG/ BTUNG 

### AvgLPGPrice* Average LPGPrice ($ / kBtu)
= DOLLARLP/ BTULP 

### AvgFOPrice* Average Fuel Oil Price ($ / kBtu)
= DOLLARFO / BTUFO

.. 

### *VarIables created by DOE from combmmg RECS 2001 varIables.

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### REFERENCES

U.S. Department of Energy - Energy Information Administration. Residential Energy Consumption Survey: Household Energy Consumption and Expenditures 2001. 2001. (Last accessed May 18, 2005.) <http://www.eia.doe.gov/emeu/recs/rees2001/publicuse2001.html> 

### REFERENCES 1. U.S. Department ofEnergy

- Energy Information Administration. ResidentialEnergy Consumption Survey: HouseholdEnergy Consumption andExpenditures 2001. 

### 2001. (Last accessed May 18, 2005.) <http://www.eia.doe.gov/emeu/recs/recs2001/publicuse2001.html>

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